Interest in obtaining NexGard without vet prescription is rising among dog owners in the United States. This oral treatment is widely used to protect dogs against fleas and ticks. However, because it contains active ingredients that impact a dog’s nervous system, veterinary approval is generally required to ensure safe and appropriate use. Purchasing NexGard without vet prescription can lead to risks such as incorrect dosing or missed underlying health issues. U.S. regulations mandate a valid prescription to safeguard animal health, emphasizing the importance of professional veterinary guidance before administering any flea and tick preventive medication.